Patent · US Expired

Method for starting a multicylinder internal combustion engine

US6050231A · kind A · utility

47Cited by

3References

3Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Florian Tisch · Lenggries, DE
Achim Koch · Tegernheim, DE
Richard Wimmer · San Francisco, US

Key dates

Filing date	Sep 29, 1998
Grant date	Apr 18, 2000
Priority date	—
Expiry date	Sep 29, 2018

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/001
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for starting a multicylinder internal combustion engine having electromechanically actuated inlet valves and outlet valves includes, during a starting operation, for at least one revolution of a crankshaft of the engine, operating the engine so that pistons of the cylinders, which are simultaneously at top dead center, perform in parallel an operating cycle including intake, compression, working, and expulsion, respective inlet valves of the cylinders being simultaneously opened and, after executing the intake and compression stroke, performing one operation selected from the group thereof consisting of ignition, fuel injection, and both ignition and fuel injection, simultaneously, and, after executing the working stroke, opening the outlet valves simultaneously for the expulsion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.